I bought wd 1 tb external hard disk for like 1 year ago and until this date I fell this device like 4 times and all 4 times I replace the hard disk from company for not working. Wd is a nice user friendly company. There service is very good pickup and drop facility is nice and I get the product very fast and new. It is the fastest and very nice external hard disk. But it is not so durable. I have buy phommed carring case for its protection. So if its fall then it will not be stop working. And I biy this hard drive for loke 5500rs but it is worth of the money because they give me 5 years of replacement warranty. So im so comfortable to use this device